.layout {
  width: 100%;
  height: 100%;
  margin: 0;
}
.layout .navbar {
  width: 100%;
  height: 50px;
  margin-bottom: 0;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 100;
  border: none;
  border-radius: 0;
  background-color: rgba(0, 0, 0, 0.3);
}
.layout .navbar .container-fluid .navbar-brand {
  color: #f5f5f5;
}
.layout .navbar .container-fluid .navbar-collapse {
  padding: 0;
  border: none;
}
.layout .navbar .container-fluid .navbar-collapse .navbar-nav {
  padding: 0;
  margin: 0;
  background-color: rgba(0, 0, 0, 0.3);
}
.layout .navbar .container-fluid li a {
  color: #f5f5f5;
}
.layout .navbar .container-fluid li a:hover {
  background: transparent;
  color: #ff0000;
}
.layout .aside {
  position: absolute;
  height: 100%;
  width: 200px;
  left: 0;
  top: 0;
  z-index: 1;
  background-color: rgba(0, 0, 0, 0.2);
}
.layout .aside ul {
  width: 100%;
  height: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.layout .aside ul li {
  width: 100%;
  height: 50px;
  line-height: 50px;
  margin-bottom: 20px;
}
.layout .aside ul li a {
  font-size: 20px;
  color: #f5f5f5;
  display: block;
  width: 100%;
  height: 100%;
}
.layout .article {
  height: 100%;
  width: 100%;
}
.layout .article .section {
  position: relative;
  padding-left: 200px;
}
.layout .article .section .jumbotron {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  padding: 0;
  background-color: transparent;
}
.layout .article .section .jumbotron h1 {
  color: #FFF6F6;
}
.layout .article .section:nth-child(1) {
  background: url("../images/bg0.jpg") no-repeat center / cover;
}
.layout .article .section:nth-child(2) {
  background: url("../images/bg1.jpg") no-repeat center / cover;
}
.layout .article .section:nth-child(3) {
  background: url("../images/bg2.jpg") no-repeat center / cover;
}
.layout .article .section:nth-child(4) {
  background: url("../images/bg3.jpg") no-repeat center / cover;
}
.layout .article .section:nth-child(5) {
  background: url("../images/timg%20(2).jpg") no-repeat center / cover;
}
.line {
  border-bottom: 2px solid greenyellow;
}
@media (max-width: 991px) {
  .article .section {
    padding-left: 50px !important;
    background-attachment: fixed !important;
  }
}
/*超小屏设备（手机）的时候article高度设为auto，使用浏览器的滚动条*/
/* 设置滚动条的样式 */
::-webkit-scrollbar {
  width: 10px;
}
/* 滚动槽 */
::-webkit-scrollbar-track {
  -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
}
/* 滚动条滑块 */
::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
}
::-webkit-scrollbar-thumb:window-inactive {
  background: rgba(255, 0, 0, 0.1);
}
